Open-Source Virtualization: Who's Biting?

Virtualization is unarguably one of the biggest trends of the past few years, and open-source software has been on the IT radar for a while now. So does that make open-source virtualization twice as much of a good thing?

At least some corporate IT departments think so. They're turning to open-source software as part of their virtualization mix. Sure, savings are a big factor, but so is the ability to tweak the software to suit specific requirements...